Stompa is missing

Yesterday afternoon our two Cats and Stompa was on the Veranda.
The Veranda is about 3 meters ( 9 feet) above the ground.
When we called for the Cats, Rosa and Felicia ran in.

But Stompa did not come. He had vanished from the Veranda. No sign nor sound of him.
We of course went out searching for him, as he has never been outside our Winterhome. But in vain.
We went out early this morning (We had frost last Night) as well and callled for him. In vain.
I stayed at home as long as I could, before entering the office. Called for him around 11 am. In vain.

Then we came home in the early afternoon and inspected large parts of our Neigbourhood. There is Forests and Gardens - and only one Road. The rest is for Pedstrians only. We search and called for him. In vain

We have been Catsitters for Stompa since April 14, since Sölvi was supposed to visit Ingelin in Düsseldorf - but due to the Volcanic Ashes, her flight was canselled. But she hoped to go another Day, so Stompa stayed with us and his two Cousins. Stompa is 10 years old and castrated. He has before also been away for some Days, so we hope the very best.